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Finding the Fourth Proportional to 11,163.39, 16,744.68 and 3,372

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Solution

The fourth proportional to 11,163.39, 16,744.68 and 3,372 is: 5,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.39 : 16,744.68 = 3,372 : x
  2. Step 2: Convert to fraction form
    11,163.39/16,744.68 = 3,372/x
  3. Step 3: Cross multiply
    11,163.39x = 16,744.68 × 3,372
  4. Step 4: Simplify right side
    11,163.39x = 56,463,060.96
  5. Step 5: Solve for x
    x = 56,463,060.96/11,163.39
  6. Step 6: Final answer
    x = 5,057.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.